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180=-x+25
We move all terms to the left:
180-(-x+25)=0
We add all the numbers together, and all the variables
-(-1x+25)+180=0
We get rid of parentheses
1x-25+180=0
We add all the numbers together, and all the variables
x+155=0
We move all terms containing x to the left, all other terms to the right
x=-155
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